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Developer priorities by diagnostic London Mayor

Developer priorities allow you to review the important aspects of your assessment from a technical view point. Typically, these priorities relate to changes that cannot be addressed by content editors easily.

Assessment completed on 03 Jul 2015 at 16:16 looking at http://www.london.gov.uk/.


  • 125 pages

  • 9,313 pages in 384 documents

  • 5 documents

  • None found

  • 1 document

Five slowest URLs by time to first byte



Top five accessibility issues

Occurrences What We Checked
999+ F70 : Failure of Success Criterion 4.1.1 due to incorrect use of start and end tags or attribute markup
999+ H74 : Ensuring that opening and closing tags are used according to specification
349 H30 : Providing link text that describes the purpose of a link for anchor elements
236 PDF16 : Setting the default language using the /Lang entry in the document catalog of a PDF document
228 G92 : Providing long description for non-text content that serves the same purpose and presents the same information

Top five code quality issues

Occurrences What We Checked
999+ A start or end tag was found which was unrecognised
859 Invalid attribute name
647 A "301 Moved Permanently" response was received
196 A redundant close tag was found
9 A tag has been assigned the same attribute more than once

Top five functions / links issues

Occurrences What We Checked
263 File not found
63 Host not found in DNS
8 Redirect points back to the original page
6 Timeout downloading file
2 Access is denied